"two machines in a lightbulb factory are being inspected because quality control raised concerns. managers have found that the probability that the first machine produces a defective lightbulb is 0.3 and that the probability that the second machine produces a defective bulb is 0.2. inspectors take a sample o six bulbs from the first machine and five from the second, and use x-b(6,0.3) and y-B(5,0.2) to model the number of defective lightbulbs in the samples from the first and second machines respectively. Compare and contrast the central tendency and spread of these binomially distributed random variables.

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